EVAL-ADV7842-7511P No Output

Yesterday, We receive a EVAL-ADV7842-7511P video evaluation board for debug.We use PC tool named "AVES BLUE 3.03.1558", through "AdvantivSerial", control this board.But bad news, HDMI output of EVAL-ADV7842-7511P is nothing. The test script includes “6-1e Port A, 720p,1080i YPrPb 444 in, RGB 444 out, Through HDMI” and “5-7a 1280x768@60 WXGA RGB in_ 444 24bit H_V_DE DVI”.While test, the input video source is adapt to script config.We also check they are good to serial port line, VGA line and HDMI line.so, why will it appear?How can we do?Please help us,thanks.

1. For EVAL-ADV7842-7511/EVAL-ADV7842-7511P, we recommend that you use our software driver rather than scripts to configure the board.

2. If you absolutely need to use scripts to configure the evaluation board, you will need to make sure you configure the ADV7842 with appropriate EDID data.

3. If this is your first project on ADV7842/EVAL-ADV7842-7511, we suggest to use an HDMI generator or VGA generator rather than a PC or consumer electronic device. PC or consumer electronic device will require valid EDID data and potentially change its output based on what it sees. It might also try to enable HDCP encryption without you knowing about it. It is much better to do initial evaluation/development with a video generator which will output a known-good signal regardless of EDID.